Combination duster and scrubber.



G. W. HAHN.

COMBINATION DUSTER AND SCRUBBER.

APPLICATION FILED IAN. 24 ISIS.

Patented Sept. 19, 1916.

UNITED STATES PATENT' OFFICE.

GEORGE W. HAHN, OF INDIANAPOLIS, INDIANA.

COMBINATION DUSTER AND SCRUBBER.

Application filed January 24, 1916.

To all whom t may concern:

Be it known that I, GEORGE W. HAHN, a citizen of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented a new and useful Combination Duster and Scrubber, of which the following is a specification, reference being had to the accompanying drawings, and to the letters and iigures of reference marked thereon.

This invention relates to a dusting brush and a scrubbing brush combined and provided with a water-supplying conduit, the invention having reference more particularly to a water-supplied brush that is designed for rapid work in cleaning the running gear of automobiles or muddy surfaces of other vehicles or other structures.

An object of the invention is to provide an improved combination dusting and scrubbing brush that shall be so constructed as to be capable of withstanding the deteriorating effects of water, and which shall be simple and inexpensive so as to be suitable for general use.

Another object is to provide a strong and durable brush of such construction as to permit the renewal of the bristles or brush fibers while saving the remainder of the brush for future use, in the interest of economy. i

A further object is to provide a metallic brush back that shall be of light weight and strong and capable ofy holding the maximum number of bristles or fibers to form the brush, in order that the brush structure while having an unobtrusively small back shall be adapted to cover a large amount of surface in operation.

A still further object is to provide an improved brush frame having a conduit therein for conducting water to wet the brush and the surfaces to be cleansed and be capable of supplying suflicient water for rinsing the scrubbed surfaces, which frame shall be de'- tachable from the brush back in order to permit renewal of the brush without discarding the en tire frame of the brush, in order that the brush shall be not only efiicient and durable but also economical in use.

lVith the above-mentioned and other objects in view, the invention consists in an Specification of Letters Patent.

Patented Sept. 19, 1916.

Serial No. 73,896. n

improved conduit-equipped brushfhaving a novel back and frame, and novel means for securing the brush bristles or the like to the back; the invention consisting further inthe parts, and combinations and arrangements of parts, as hereinafter particularlydescribed and further defined in the accompanying claims.

Referring to the drawings, Figure l is a perspective view of the improved duster and scrubber; Fig. 2 is a perspective view of the principal portion of the frame of the duster and scrubber; Fig. 3 is a longitudinal central sectional View of rthe duster and scrubber; Fig.' l vis a sectional elevation approximately on the line A A on Fig. 3; Fig. 5 is a section, partially broken away, approximately on the line B B on Fig. 4: looking upward; Fig. 6 is a perspective view of the main part of the improved brush back inverted; and, Fig. 7 is a perspective view Y of the inner part of the brush back inverted.

Similar reference characters on the diiferent figures of the drawings indicate corresponding elements or features of construction herein referred to.

In practically carrying out the objects of the .invention a novel brush back is provided which comprises a main or outer part that is composed of sheet metal and bent so as to be approximately U-shaped in cross section, so that the part has an arched top portion l from which extend two flat side'portions 2 and 3 of the desired length, one side portion having flexible fingers Ll and 5 on its ends, the opposite side portion having similar fingers Gand 7 on its ends, the fingers projecting from the ends before uniting the parts of the back. The inner part of the back also is composed of sheet metal and bent so as to be approximately U-shaped in Across section but of less width and height than the outer part, both parts being equal in length, the inner part thus having an arched upper portion 8 from which extend two flat sides 9 and 10. One side 9 has notched corners so as to form downwardly facing shoulders 11 and 12,the opposite-side being similarly notched at its ends to form downwardly-facing shoulders 13 and 1l, the notches or recesses in therends of the sides being designed to receive the fingers of the outer part. Suitable brush material is employed, such as bristles or wood bers arranged transversely of the main part, the middle portions of the bristles or fibers being pressed into the main part as a layer 15 and against which the inner part is forced, after which the fingers of the main part are bent over across the end portions of the layer and inward against the inside of the sides 9 and 10 or the inner part, the ingerslbeing in contact with the shoulders of the inner part and securely locking the inner part in place and enabling it to securely retain the brush material which projects from the back parts, so as to form two associated brush rows 16 and 17 of bristles or the like. Thus constructed the brush is suitable for hand use for various purposes.

In order to supply the brush with water, the more readily to loosen and remove mud from surfaces, a tube 18 is provided and inserted endwise in the inner part of the brush back so as to be behind the fingers that are on the inside of the lower portions of the sides 9 and 10, the fingers retaining the tube against lateral displacement. A collar 19 is placed on one end of the tube and suitably secured thereto, as by expanding the end of the tube in the collar, the latter being brought up to the end of the brush back, the tube being sufliciently long to extend beyond the opposite end of the brush back to adapt the tube to constitute a part of the frame for holding and using the brush. The end of the tube that has the collar on it is closed, preferably by means of a wooden plug 2O driven therein, and in order to guard against the metallic brush back marring finished surfaces a guard or cover 21 is provided which may be composed of leather or other yielding substance in the form of a disk which is placed against the collar 19 and secured thereto by means of a nail 22 driven through the disk and into the plug 20. The tube 18 which forms a water-supplying conduit has a. suitable number of apertures 23 in the normal under portion of its wall so as to deliver water to the brush material. A handle member 211 is placed on the projecting portion of the tube against the rear end of the brush back and secured thereto by means of a screw-threaded nut 25 which is screwed onto the tube and tightly secures the latter to the brush back, the nut having a flange 26 thereon provided with internal screw-threads-27 so as to constitute a coupling member to be connected to the coupling device of a water-supplying hose, a packing washer 2S being placed in the coupling member.

In practical use the brush may be used for a great variety of purposes, either dry or wet, and is especially adapted to be inserted between the spokes of vehicle wheels, or other limited spaces, for removing dust in secured to the main part, and brush material arranged in a layer between said back parts and secured thereto, the material extending beyond said parts.

2. A duster and scrubber including an arched main back part, an arched inner back part in the main back part, brush material arranged in a layer between the back parts and secured thereto, the material extending beyond said parts, a tube in the imier back part and extending beyond the ends thereof, the tube having apertures in its wall between the sides of the inner back part, a collar secured to one end of the tube and in contact with one end of the back parts, and a retaining device on the tube in contact with the opposite 'ends of the baclz parts.

3. A. duster and scrubber including an arched main back part having fingers on the two opposite ends thereof, an arched inner back part in the main back part and having shoulders in its ends engaged by said fingers and thereby secured to the main part, brush material arranged in a layer between said back parts and secured thereto, the material extending beyond the parts, a perforated tube in the inner back part and extending beyond the ends thereof, the tube extending behind said fingers, a collar secured to one end of the tube and in contact with one end of the main back part, a yielding cover secured to and covering the front of the collar, a handle member on the tube in contact with the opposite end of the main back part, and a nut secured to the tube in contact with the handle member and having a hose-coupling member thereon.

4. A duster and scrubber including an arched main back part having fingers on the two opposite ends thereof, an arched inner back part in the main back part and having recesses in its ends receiving the fingers and thereby being secured to the main part, bristle-like material arranged in a layer between said back parts and secured thereto, the material extending beyond the parts, a tube in the inner back part and extending beyond. the ends thereof, the tube having apertures in its wall between the sides of the inner back part, a collar secured to one end of the tube and in Contact With one' end of tube n Contact With the handle member and the main back part and the fingers thereof, a, having a hose-coupling member thereon.A 10 plug secured n the end of the tube adjacent In testimony whereof, I afliX my signature to the collar, a yielding cover secured to the in presence of two Witnesses.

n plug and Covering the front of the collar, a GEORGE W. HAHN.

handle member on the tube in Contact with Vtnesses: the opposite end of the main back part and E. T. SnivIUs, the fingers thereof, and a nut secured to the M. E. SPARROW.

Copies of this patent may be obtained for ve cents each, by addressing the "Commis'sioner of Patents, Washington, D. C. 

